Trough-valve.



B. I. MAULDIN.

THOUGH VALVE.

ArrLloA'rron rILnD 1113.16. 190e.

Patented July 6, 41909.

E www [NVE/WOR ULD IN WITNESSES Q @nl BLAKE I. MA

ATTORNEYS UNITED sTArns .PATENT OFFICE.

H'LAK I. MAULDIN, Ul` OZONA. TEXAS.

"rnoUGH-VALVE.

Specification of Letters Patent.

Patented July 6, 1909.

Application ined February 1s, 1969. serial No. 473,278.

matic float valves designed especially for use in water troughs wherein thel supply of water 1s conducted from a reservoir into a trough and consumed 1n the latter, so that the water vwill be automatically supplied as the water level lowers in the trough; and the present invention consists in certain novel constructions and combinations of 'parts `as will be hereinafter. described and claimed.

-In the drawing Figure lis a vertical longitudinal section of a Vvalve embodying my invention, the trough being shown in dotted lines. Fig. 2 is a top plan view.

The trough A is supplied from a suitable reservoir through the pipe B opening into a pipe C 1n the trough 'and threaded at l to receive the `lowerlend of the valve tube Dl which valve tube has at its lower end a projecting seat D against which the valve proper seat-sand in this tube I provide at E a guide for the valve stem F of the valve FV and the stem extends above the said guido through an upper gulde G and has at its upper end a loose hinge connection wlth one varm of a lever H, the connection being cffected by means of the link I pivoted at I- at the upper end of the' valve stem and havlng a series of openings I2 through which the bolt H for connecting the link with the lever H may be passedl in securing any deslred adjustment of the parts.

The lever H is fulcrumed at II2 in connectlon with an suitablesupport Ila and the said support ias a series of `openings for the passage of the pivot bolt H2 so that such connection'may be adjusted as desired.

The link I connects with what may be termed for convenience 0f reference the innerl end of the lever H and the opposite or outer end of such lever 'is connected at J with a link J which link is also connected at J 2 pivotall with the inner end of a float lever K, the ink J being provided4 with a series of perforations for the ,bolts J and J 2 to the adjustment of said connections.

The lever K fulcrums at K and' is preferably milde in two sections K and Ks -ivot allyrconnected at K4 with the section i adpermit justable on said pivot and .se-.cured lin any desirable adjustment by means ol a pin h5 passed through any one ol a series ol holes L KG. By this construction the device may be regulated according to the depth of water desired in the trough and can be set for either shallow or deep water as may bc desired..

A float L which may have sufficient buoyancy to operate as a 'loat within the water and sullclent gravity to act as a weight as the water level lowers is suspended by a hanger L from the section K2 of the lever and may be connected into any desired one of a number ol holes L2 to regulate it according to the pressure of water in theI tank or reservoir. A spring M operates to lift the valve F and the levcrsin case the weight or float L is removed and operates as a safety device to prevent the reservoir or tank from empt ing through the valve in case the said float l or the lever should become deranged or thrown out of operation. The spring as shown is a coil spring on the stem F and operating'between the guide E and a stop F.

on the valve stem and operates asa valve closing spring as Well as a means for countcrbalancing in a way the weight of the levels, etc. The fioat has a leather or other suitable packing'l3 to abut the seat D and is preferably conical on its under side. asA

shown so that grass and the like will not hang on the valve.

In operation when the Water level in the trough has lowered to the position shown, the float L will operate as a weight to adjust the levers to the position shown to open the valveIl and the water will pass from the tank or reservoir into the trough until its level has risen to such a point as to operate upon the levers through the float L to close the valve F. In this operation it wlll be noticed that the valve closes in the direction of and with the pressure from the reservoir so that water will not esca'e even if the float and the lever mechanism should be broken off, the valve operating at such time as a check valve and such operation of the valve being aided by the action of the sprin M. The pivotal support for the levers 'and K is 1n sections 1 l eld together by bolts or screws, see Fig. 1.

I claim:

1. In an apparatus substantially as described, the combination with a valve ar sure from the supply and having a valve stem, a spring operating upon said valve stem for closing the valve, a lever pivoted between its ends, a link pivoted to the valve tion connected With the last named link and.

a second section pivoted. to the first section and adjustable on said pivot relatively to the first section whereby to regulate the lever according to the desired height of Water and a float carried by said second section r,of the lever, substantially as set forth.

2. The combination in an apparatus substantially as described, of a valve, an intermediate lever pivoted between its ends and arranged at one end to operate the valve,

a float lever made in sections and having one E section pivoted between its ends and a seeond section pivoted to said first section and adjustable relatively thereto 0n said pivot, connections between said irst section and the intermediate leveranda float carried by said second section subsi antially as set forth.

3. T he combination .in an apparatus substantially las described of a controlling valve, an intermediate lever pivoted between its ends, connections between one end of said lever and the controlling valve, a float Carr ing lever ivo d between its ends, and eenneetions etween said lloat carrying lever and the other end of the intermediate lever,

substantially as set forth.

BLAKE I. l\lAUlJl)lN.

Witnesses: f

( lxIAs.. E. DAVIDSON, TOM NoLuN. 

